twin beam
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2021 ◽  
Vol 104 (6) ◽  
Author(s):  
N. Samantaray ◽  
J. C. F. Matthews ◽  
J. G. Rarity

2021 ◽  
pp. 127828
Author(s):  
Alessia Allevi ◽  
Maria Bondani
Keyword(s):  

2020 ◽  
Vol 10 (24) ◽  
pp. 9094
Author(s):  
Alessia Allevi ◽  
Maria Bondani

In the past twenty years many experiments have demonstrated that quantum states of light can be used for secure data transfer, despite the presence of many noise sources. In this paper we investigate, both theoretically and experimentally, the role played by a statistically-distributed asymmetric amount of loss in the degradation of nonclassical photon-number correlations between the two parties of multimode twin-beam states in the mesoscopic intensity regime. To be as close as possible to realistic scenarios, we consider two different statistical distributions of such a loss, a Gaussian distribution and a log-normal one. The results achieved in the two cases show to what extent the involved parameters, both those connected to loss and those describing the employed states of light, preserve nonclassicality.


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